Revert "Fixed more minor memory leaks."

It breaks the build, the memory management needs more changes before these fixes.

This reverts commit 41fbe1e9dd.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Core/Parser/ASTConverter.cs

@@ -351,8 +351,6 @@ namespace CppSharp
             foreach (var nativeObject in declConverter.NativeObjects)
                 nativeObject.Dispose();
 
-            Context.Dispose();
-
             return _ctx;
         }
     }

src/Core/Parser/Parser.cs

@@ -48,7 +48,7 @@ namespace CppSharp
         /// <summary>
         /// Parses a C++ source file to a translation unit.
         /// </summary>
-        public void ParseSourceFile(SourceFile file)
+        public ParserResult ParseSourceFile(SourceFile file)
         {
             var options = file.Options;
             options.ASTContext = ASTContext;
@@ -56,7 +56,8 @@ namespace CppSharp
 
             var result = Parser.ClangParser.ParseHeader(options);
             SourceParsed(file, result);
-            result.Dispose();
+
+            return result;
         }
 
         /// <summary>

src/Generator/Driver.cs

@@ -237,8 +237,6 @@ namespace CppSharp
                     continue;
 
                 Symbols.Libraries.Add(ClangParser.ConvertLibrary(res.Library));
-
-                res.Dispose();
             }
 
             return true;
@@ -504,7 +502,6 @@ namespace CppSharp
             }
 
             driver.Generator.Dispose();
-            driver.TargetInfo.Dispose();
         }
     }
 }